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| | ==NMR structure of the complex between the C-terminal domain of the Rift Valley fever virus protein NSs and the PH domain of the Tfb1 subunit of TFIIH== | | ==NMR structure of the complex between the C-terminal domain of the Rift Valley fever virus protein NSs and the PH domain of the Tfb1 subunit of TFIIH== |
| - | <StructureSection load='2n0y' size='340' side='right' caption='[[2n0y]], [[NMR_Ensembles_of_Models | 20 NMR models]]' scene=''> | + | <StructureSection load='2n0y' size='340' side='right'caption='[[2n0y]]' scene=''> |
| | == Structural highlights == | | == Structural highlights == |
| - | <table><tr><td colspan='2'>[[2n0y]] is a 2 chain structure. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2N0Y OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2N0Y FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[2n0y]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Rift_valley_fever_virus_(STRAIN_ZH-548_M12) Rift valley fever virus (STRAIN ZH-548 M12)] and [https://en.wikipedia.org/wiki/Saccharomyces_cerevisiae_S288C Saccharomyces cerevisiae S288C]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2N0Y OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2N0Y FirstGlance]. <br> |
| - | </td></tr><tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[2m14|2m14]], [[2lox|2lox]], [[1y5o|1y5o]]</td></tr> | + | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">Solution NMR</td></tr> |
| - | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2n0y FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2n0y OCA], [http://pdbe.org/2n0y PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=2n0y RCSB], [http://www.ebi.ac.uk/pdbsum/2n0y PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=2n0y ProSAT]</span></td></tr> | + | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=2n0y FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2n0y OCA], [https://pdbe.org/2n0y PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2n0y RCSB], [https://www.ebi.ac.uk/pdbsum/2n0y PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2n0y ProSAT]</span></td></tr> |
| | </table> | | </table> |
| | == Function == | | == Function == |
| - | [[http://www.uniprot.org/uniprot/TFB1_YEAST TFB1_YEAST]] Acts as component of the general transcription and DNA repair factor IIH (TFIIH) core, which is essential for both basal and activated transcription, and is involved in nucleotide excision repair (NER) of damaged DNA. TFIIH has CTD kinase and DNA-dependent ATPase activity, and is essential for polymerase II transcription in vitro.<ref>PMID:7961739</ref> <ref>PMID:8631896</ref> [[http://www.uniprot.org/uniprot/NSS_RVFVZ NSS_RVFVZ]] Inhibits host general transcription by inhibiting host basal transcription factor TFIIH.<ref>PMID:21543505</ref> | + | [https://www.uniprot.org/uniprot/TFB1_YEAST TFB1_YEAST] Acts as component of the general transcription and DNA repair factor IIH (TFIIH) core, which is essential for both basal and activated transcription, and is involved in nucleotide excision repair (NER) of damaged DNA. TFIIH has CTD kinase and DNA-dependent ATPase activity, and is essential for polymerase II transcription in vitro.<ref>PMID:7961739</ref> <ref>PMID:8631896</ref> |
| | <div style="background-color:#fffaf0;"> | | <div style="background-color:#fffaf0;"> |
| | == Publication Abstract from PubMed == | | == Publication Abstract from PubMed == |
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| | __TOC__ | | __TOC__ |
| | </StructureSection> | | </StructureSection> |
| - | [[Category: Chabot, P R]] | + | [[Category: Large Structures]] |
| - | [[Category: Cyr, N]] | + | [[Category: Saccharomyces cerevisiae S288C]] |
| - | [[Category: Fuente, C de la]] | + | [[Category: Chabot PR]] |
| - | [[Category: Guendel, I]] | + | [[Category: Cyr N]] |
| - | [[Category: Kehn-Hall, K]] | + | [[Category: Guendel I]] |
| - | [[Category: Lecoq, L]] | + | [[Category: Kehn-Hall K]] |
| - | [[Category: Omichinski, J G]] | + | [[Category: Lecoq L]] |
| - | [[Category: Drug target]] | + | [[Category: Omichinski JG]] |
| - | [[Category: Transcription]]
| + | [[Category: De la Fuente C]] |
| - | [[Category: Transcription-viral protein complex]]
| + | |
| - | [[Category: Viral protein-transcription complex]]
| + | |
| - | [[Category: Virulence]]
| + | |
| - | [[Category: Virus-host interface]]
| + | |
| Structural highlights
Function
TFB1_YEAST Acts as component of the general transcription and DNA repair factor IIH (TFIIH) core, which is essential for both basal and activated transcription, and is involved in nucleotide excision repair (NER) of damaged DNA. TFIIH has CTD kinase and DNA-dependent ATPase activity, and is essential for polymerase II transcription in vitro.[1] [2]
Publication Abstract from PubMed
Rift Valley fever virus (RVFV) is a single-stranded RNA virus capable of inducing fatal hemorrhagic fever in humans. A key component of RVFV virulence is its ability to form nuclear filaments through interactions between the viral nonstructural protein NSs and the host general transcription factor TFIIH. Here, we identify an interaction between a OmegaXaV motif in NSs and the p62 subunit of TFIIH. This motif in NSs is similar to OmegaXaV motifs found in nucleotide excision repair (NER) factors and transcription factors known to interact with p62. Structural and biophysical studies demonstrate that NSs binds to p62 in a similar manner as these other factors. Functional studies in RVFV-infected cells show that the OmegaXaV motif is required for both nuclear filament formation and degradation of p62. Consistent with the fact that the RVFV can be distinguished from other Bunyaviridae-family viruses due to its ability to form nuclear filaments in infected cells, the motif is absent in the NSs proteins of other Bunyaviridae-family viruses. Taken together, our studies demonstrate that p62 binding to NSs through the OmegaXaV motif is essential for degrading p62, forming nuclear filaments and enhancing RVFV virulence. In addition, these results show how the RVFV incorporates a simple motif into the NSs protein that enables it to functionally mimic host cell proteins that bind the p62 subunit of TFIIH.
A OmegaXaV motif in the Rift Valley fever virus NSs protein is essential for degrading p62, forming nuclear filaments and virulence.,Cyr N, de la Fuente C, Lecoq L, Guendel I, Chabot PR, Kehn-Hall K, Omichinski JG Proc Natl Acad Sci U S A. 2015 Apr 27. pii: 201503688. PMID:25918396[3]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
References
- ↑ Svejstrup JQ, Feaver WJ, LaPointe J, Kornberg RD. RNA polymerase transcription factor IIH holoenzyme from yeast. J Biol Chem. 1994 Nov 11;269(45):28044-8. PMID:7961739
- ↑ Sung P, Guzder SN, Prakash L, Prakash S. Reconstitution of TFIIH and requirement of its DNA helicase subunits, Rad3 and Rad25, in the incision step of nucleotide excision repair. J Biol Chem. 1996 May 3;271(18):10821-6. PMID:8631896
- ↑ Cyr N, de la Fuente C, Lecoq L, Guendel I, Chabot PR, Kehn-Hall K, Omichinski JG. A OmegaXaV motif in the Rift Valley fever virus NSs protein is essential for degrading p62, forming nuclear filaments and virulence. Proc Natl Acad Sci U S A. 2015 Apr 27. pii: 201503688. PMID:25918396 doi:http://dx.doi.org/10.1073/pnas.1503688112
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